Window.



, PATENTED JUNE 16, 1908. 0.1111113011.

WINDOW.

APPLIGATION P11-1m PEB. 12, 1904.

7 SHEETS-SHEET l.

I JIIIMII `III.I.I,I.IWII..II .II I I I ...IM

n in

1 und u 1 1 PATENTED JUNE 16, 1908. C. D. TABOR.

WINDOW.

APPLICATION FILED PEB.12, 19041 7 SHEETS-SHEET 2.

messes,

No. 390,726. PATENT-ED JUNE 16, 1908.

0.1).TAB0R.

WINDOW.

`APPLICATION FILED FEB. 12. 1904.

PATENTED JUNE '10, 1900. 013.1391300.

WINDOW.

APPLIGATIoN FILED P0012. 1904,

` No. 890,126. PATENTED JUNE lejgoa.

- 0. D. TABOR.

WINDOW.

APPLIGATION FILED M512, 19o/z.

,7 SHEETS-SHEET 5.

PATBNTBD JUNE '16, 1908. e. D. TABo-R.

WINDOW.

` APPLICATION FILED IFBB. l2. 1904.

7 SHEETS-SHEET 7.

-1 UNITED sTATns PATENT onirica.

CLITON DfTABOR, OF JERSEY CITY NEW JERSEY, ASSIGNOR TO TABOR S ASH COMPANY, OF

" NEWARKi-NEW JERSEY.

WINDOW.

.Specification of Letters Patent..

' `Patented June 16, 1908.

ppieation i'led February 12, 1904. Serial No. 193,314.

ful Improvements inWindows, ofwhich the following is a specification. A

This invention relates more particularly to a metal or fire proof window. e

lThe objects 'of this invention are to produce a metal frame and sash. which is so con.-

"stri'icted that the parts can he easily assembled'lfor installation or dismeinbered for 'repairing; to improve the means for reversingr t e sash so that either side can be cleaned 'from the interior'of the building; and to im- PI'Qve the construction of the window in other respects.

In" the accompanying drawings consisting lof 7 sheetsrFigure 1 is a sectional elevationA of'my im roved `window viewed from the outside. ig. 2 isa vertical section of -the saine in line 2 2, Fig. 1.' Fig. 3 is a vertical section, on an enlarged scale, of the-inner is a vertical section in line G56,

'or lower 'sash and the adJ-acent part of the frame'taken inthe plane 'of the glass. Fig.

f4 is afra'gm'entary vertical section, on an enj-.larged sciale, taken in line 4 4, Fig. 3, showing the .means foroonnecting` the back of the frame side jambs with fthe frame corner pieces! Fig. 5 is a-horizontal section, on an enlarged Scale, in line 5-5,'Fig.3.

5. Fig.

. 7"is a vperspective. view of alcorner piece for connecting' Figs. 8 and 9 are detachee perspective views of thebars for stili'ening and connecting up the faces of` the frame j amhs.

` Fig. 10-i`s a fragmentary vertical section, 'on

'ofi itslowerportioir l K tary horizontal section, on an enlarged scale, 3, showing the means ,of

an enlarged scale,\.ii1 line 10-10, Fig.'2,

-showingthe joint `between one frame'jainbV andthe head and adjacent parts. Fig. 11is a horizontal section in line 11-f11, Fig. 10, looking upward. Fig. 12 isa-similar section in liiie12-12,` Fig.- y10, looking downward.. Fig. 13 is a perspective viewof the frame head. Fig. 14 is a similar view of one frame amh and. the sill, showinU the Amanner in which, thesan'ie are assembled. Fig. 15 is a fragmentary perspectivel view. of' ajainb .in an inverted position, .showing the form-ation Fig. -'161is.a fragmen-` Fig. 6v

the lower end of a .frame fami)l with the siii;

ivotally connecting the sash and hangers. ig.' 17 isa fragmentary vertical section in line 17-17, Fig. 16.` 18 is a perspective view of one of thesash pivots. Fig. 19

vis Ya vertical section inline .-19-119,Fig. 17.

Fiv. 2()A is a fragmentary horizontal section in lline 20-20, lFig 3, showing the construction of the inullions of the sash'. Fig.- 21 is a fragmentary vertical section, onfan enlarge scale, showing thei-neans A'of 'connect Iing the end of a inu ion witlitransom or rail ofthe sash. Fig. a. perspective view of vone of the inulglion oo ufp ing pieces. Fig. 23 is a'perspectivevw o the fittings for coupling the end of a sashA stile andi-ail.

-tioninline26-26, i l means for connecting the frame 'sill land aA .zontal sections of the same in lines 27-27- perspective views of the vco of two adjacent bars or mein )ers ola sash.

-pivoted.

line'32-32, Fig. 1. Fig. 33 is transverse section in line Fig. 34 is a fragmentary `vertical section, showing a modified construction of'tlite means for fastening the two parts of a frame corner fitting.1 F igs'.l 35 and 36 are fragmentar-v erating parts Fig. 37 is a fragmentary perspective` View ol' one of the hangerhars on which the sash is Similar letters of reference indicate corresponding parts throughout the several yiews.

y The frame of the Window which is'rnne structed Wholly of metal consistslessentally" of a horizontal bottom or sill A, two vertical side jambshorstiles B, B, a horizontal top 'amber head (l, two lower corneriittiiigs D',

connecting op osite ends of-the sill with 'th'elcwer endso the ljambs :andntwo upper corner 'fittings Y E, E connecting ends of the jambsr: The

a vertical section'in line a fragmentary acent'parts, on an enlarged scalo, takenl iii afragmentary` :s3- 33, Fig. io.-

l 4the ,opposite ead with the upper enclsfof the. wall containing the opening for i and forming a rabbet on fi 2o the side walls of the jamb l fis inclined outwardly .wlii egthlefrea'i receiving the frame is preferably constructed of masonry and provided with a stone stool or sub-sill A1 upon which the metallic frame taching the sill fromin each of its vertical sill rests, a recess B1 sidesfor receiving the jainbs and a recess()1 in itstop for receiving the head of the frame, as shown in Figs. l, 2, and 5.

The sill of the frame is hollowV structed of a sheet of metal which is bent to forin a horizontal top or-plate a sloping or in- Vclining transversely toward the outer side of the window, an elevated head or rib al arranged lengthwiseon the inner side of the top the sill and downwardly-'projecting'side walls or flanges @2,113 arranged on the outer edge inner edge of the rib, respectively, and vresting on the sub-sill A1. Each of the side 'ambs or stiles is also hollow and constructed of sheet metal in the ,forni of a box which comprises essentially a back or rear section and a face or front section. The back section is bent out of. a single sheet of metal to form a vertical rear wall b, inner and outer side `walls b1, b2 and inwardly-,turned flanges b3 on the upper and lower edges of the walls, as shown in Figs. 6, 10, 14 and 15. Each of folded inwardly upon itself about midway of its-widthso as to form a vertical channel or groove b4 in its outer sides which open toward the sash. The front section of each jamb is bent to form a'front wall or face plate having an intermediate or check stop b5, an inner stop b, an outer stop (17 on the face of the plate and rearwardly projecting side walls or flanges bg, bf arranged on the inner and outer edges of the face plate.

The head of the frame is bent out of a sheet of metal so as to form a horizontal bottom-or plate having inner, intermediate and outer stops c, c1, c2, inner and louter flanges or side walls c3, c4 projecting upwardly from opposite longitudinal edges of the plate, and inwardly-turned flanges c5 arranged on the uper edges of the side walls. i

Each of the lower corneriittings is constructed andI applied to ,the lower end of a side jainblandtheadjacentend of the frame sill as follows; drepresents' the hollow east iron corner piecegor. base of the lower corner fitting-f which,l consists essentially of a top plate-*d and side walls, feet or flanges d2 arj rangedat the,Z inner and outer edges of the late. This base fits snugly into one' of the owercornerspf the window o en ing in the wall with its 'feet resting on tiie bottom of 'said-opening., The front art d3 ofthe base art d4 thoroof is horizootoi. 'rho motoiii@ ISii of frio frame fits atits-opposite ends 'overthe bases d,

" its-'top platea, resting sonfrthe inclined front artsd3 thereof. and the endportions. of its an' es a2, oily-ing against Athe outer side pf thev eetthereofQ- The Asill may besecured to of the top and the back is doubled or l the base d'. in any suitable manner but l prefer a fastenin@r which ermits of readily det e base. Such a fas'- tening is shown in the drawings, Figs. 6, 7 and 26-30, and is constructed as follows:- d

d2 and the adjacent parts ofthe sill flanges.

and con- Each of those bolts 4has'its body arranged in a downwardly-open ng recess d in the lower l edge of the foot of a base and its head bears against the outer side of the sill flangelwliile f, its nut is arranged in a downwardly-opening pocketd7 on Vthe inner side of the foot. The i lower part of the recess d is enlarged, as

shown at D?, Fig. 29, to permitV of introducing the nut into the pocket from the outside and then raising the nut to the to of thev pocket in its operative position 1w ile the j base is restingon the subsill. After the nut has been thus raised in the pocket the same is held in this position by a retaining block d8 D1 into/the lower partv of the socket and thus support the nut on its elevated operative position. The sides of the pockeLAand the retaining block are corresponding sides of the nut, thereby preventing the same'from turning. When the retaining blocks are inplace their front ends are flush with the outer side of the feet and when the frame sills embrace the corner blocks in the recess and pockets, whereby the nuts are reliably held in the proper position for receiving the bolts which fasten the sill flanges to the base. This means of suporting the nuts on the feet of the corner ases avoids tapping of the latter and permits of readily assembling these parts of the window or disinembering of the same if necessary to make repairs of damage by fire or otherwise without requiring the corner bases to be removed for' this urpose. In order to rovide the necessary c earancein the pocket for the rear end of the bolt, pocket is provided with a recess or opening d which lopens downwardly so as to permit of producing the saine in the casting of the base without requiring coring.

part of the lower corner fittings and whereby the lower ends of the frame janibsare secured to the base of these fittings. Each of the jambs rests with its lower internal flanges?)3 Aon the adjacent lower base d and the adjacent clamping plate F bears against the upper side of these flanges, as shown in Figs. 3, 4, 5 and 6. The base and clamping plate may be securely fastened against opposite sides of the-lower flanges b3 by any suitable means, but I prefer for this purpose the fastenin device which is shown in the drawings and which is constructed asfollows: f represents a concave socket .or depression formed in the top of the base d and f1 a coupling pin or stud flat and engage with the bases their flanges confine the retainingl F represents clamping plates which forni '70 are fastening bolts passing throughl the feet which is inserted through the enlargement i swell has a A firmly interlocked and produce a rigid strucits sides.

vfurther secure-.tlie side jamb against displaceclamping plate lis provided o n its underside rising from thebottoin of this socket `and l having a perforation or recess?r2 which ope'ns downwardly Athrough the bottom of -the socket. f3 is a concave-convex defiection or swell arranged on the underside ofthe clam ing plate and engaging its convex side with tllie concave side of the socket in the base.` This central opening f* for receiving the stud of the base. f represents a wedge which is driven into the recess of thestud above the clam ing plate, for tightly drawing the base ant plate lagainst opposite sides ol the lower janib-anges b3. The wedge is curved downwardly and engages its Vvconvex side with the concaveI side of said swell while its concave side engages with the outer or free -end of Vthe stud. This Aconstruction of wedge fastening' permits of conveniently striking the wedge at either end in a'direction lengthwise of the janib for tightening or loosening thel same, thereby enabling the side j amb to be connected with or disconnect-A ed from the corner fitting by the useofan ordinary hammer and "avoiding the use of special tools for'this purpose. ,In order to ment-relatively to the corner fitting the with pins or dowe'lsf which pass through coinciding openings f7, f8 in theA loweramb iianges b3 and in vthe ,top of the base'as s own in Figs. 4 and '6. j u

ln fitting the front section of each jamb to its companion rear section theside flanges bs," t. of the iront section enga,V e theirv edges'- with the-grooves b4v in the si e walls. of t'hel outer edges of the side section at the junction of the inner and outer and outer sides thereof,

stops and the inner as shown in Figs.- 5, 11, 14 and 15. By this -termediate stop of thelface means the two sections of the jainb'arle4 ture. Y

The outer sides of the ben tto form vertical between its face j amb face plates are moldings orbeads fg' plate and the rear edges of The lower ends of these m dings extend below the face plate and along the vertical flanges of the ira-me sill to the sub. sill A1 and cover the heads of the bolts d5 which connect the frame sill and lowercor ner bases, as'shown in Figs. 5 and 26, thereby producing a neat and finished appearance.

T he lower part of the front section'of theA jambis held in place bydetachably-oonnect -in'g otheyfaceplate section and .thereby ventilating ing the same with the base 'of the adjacent lower corner iitting in the following manner: G represents lower cou` ling bars arranged transversely in re'ar of tlie lower .ends of the jainb face plates and provided with lu s. g?, g2 which fit intotlie concave side ofthe inner;v intermediate and outer stops, respectively. The inner and outer lu s. g5 g2 are 'secured to their respectivestops y bolts 9 3.

The middle part of the face plate and the coupling bar are secured by abolt-g4 toa lug g5 which rises from the base CZ adjacent to the inner side of the coupling bar; .The nut of the' bolt gtis seated in an upwardly-opening pocket g inthe lug g5 and the body of this bolt passes through recess g8 inthe intermediate ug of the coupling bar, and recesses '99 formed inthe inner and outer walls of the socket which contains 4the nut, as shownin Figs. 5, 6 and 26.. The

sides of the intermediatelug g1 are beveled so that this lug tapers outwardly7 the hollow rear side voi" the middle sto on engaging the same is centered relative y to the coupling bar. The top plate of the frame sill is provided with an opening g10 to permit the lug got'. the base to pass upwardly g. 6. Inl

through the same, as shown in Fi additiontoforming a part of the device forl fastening the lower end of the jainb face plate section to the lower corner base the coupling bar serves to stifen the faceA plate.`

For the, ur ose of Ventilating side of 4the olllbw frame andvc'arryingvawa any moisture vwhich may bel lowing means -are provided:

formed transversely in the to lofthe based atthe innerend oiits incline art and-coni- .municating at its-lower or discharge end with a verticaly groove' ori-channel h formed o n the an o eninfT f 7 in the P s J late, a slot or" whereby the .naar

Vrepresents a" main inclined gutter, Uro'ove `or channel;v

outer side ofthe outerfoot or'wallof the base.

A transverse row ofvlon itudinal channels -or grooves h1 is also forme inthe'top of the inwhich communicateat their inner ends withthe transverse channel, as shown'in Figs.

clined part of the base'4 7 and 31. The end portion'of 4the frame sill covers the lon itudinal.` .channels of the4 bas'e but not t e transverse channel, thereby placing the in terior oli-'the silland tion.. The vertical channel'i, of the base is arranged Within the adjacent outer moldthe lower plurality end of the latter 1s provided with a of openings or notc es b2 cation is established between the interior of the hollow window frame and the -external atmosphere. By this the jamb serves as aconduit through which munication with the exterioratmosphere,

of any moisture which may. form in the frame due toVsweating which otherwise grooves or channel in that part of the base on which the frame sill rests, this surface is the janibn communicawhereby comniunithe frame and carrying means the moldingof .theinterior of the frame is placed in com- 4 corrugated and causes the parts to come in contact onl at intervals which revents any rust -forme( Abetween the ysame rom uniting so firm that they cannot lie-easily separated.

T his is important when it becomes necessary to dismeniber the traine for making repairs into one of the upper corners vot the cap by bolts c6.

after the building has been on fire.

On its outer side therib (1A of the trame sill is curved to form a longitudinal concave channel or groove 7143 which communicates at its ends 4with the interior of the jainbs by means of Aopenings 7144 in the adjacent lower parts of the tace plates formed by cutting away the edge ot the tace plates, as shown in Figs. 26, 32 and 1-11. Any wa'ter which may drive.inwardly through the joint between the top plate of the vsill and the bottom rail of the lower sash during a rain storm enters the longitudinal channel h3 and is c arried by the latter through the openings4 into the 'anibs Tlience the water rims downwardly in the channels H, 7L of the corner b ase and through the openings 712 of the outer molding to the outside of the building. Water is thus prevented from entering the building under 'the sasl. even though the latter be closed only loosely upon the sill.

The upper ends of the side jainbs are detachably connected with the opposing ends of the traine head by upper coinei littings which are constructed substantially likethe lower corner fittings but operate reversely Ato the lower corner iittings. AEach of the. upper corner fittings is constructed as follows: I represents the hollow cast iron cap or corner piece ot an upper corner fitting which fits of the window .opening and which consists ot a bottom plat-e i., a back wall il and inner and outer side walls i2, i, The adjacent end of the frame head embraces the front cured thereto in any suitable manner. As lshown in Figs. 1, 10, 11, 12, and 13, the bot-` tom plate of the trame head stops short of the sides. and is lfitted against the underside o the front part ol' the upper corner cap while the sides of the head are secured to the sides The ends of the bottom of the head are square and extend over the upper edges of the jainb tace plate, as shown at c7,l*`ig, 10, tor producing a joint between these parts; .The sides of the head are provided with horizontal molding orbeading c8 which corresponds to the molding on the sides of the jamb Jface plate or front section and form a miter joint therewith. As shown in Figs. 1, 12, 13, and 1li, the molding on the sides of the. head extends straight to the end of the sides but the molding on the jamb sides'extends above .the upper end of the latter and is rovided with a bevel c see Figs. 1 and 14 w iich lits the molding cs of the head sides. This manner ottorming a miterjoint between these parts avoids the necessity ot' an absolutely perfect llt betweerrthe.v parts and prevents any slight inaccura'ry in'workmanship from producing an joint. 'Ihel internal flanges b at the Vu per end olf/the back section ot .the jamb ear part of the cap and is se-` i e l The recess 'i13 ot the upper mediate stop and arecess jtin the central lugot opening 1n this against the underside of the cap plate and are secured thereto -by a clamping plate i4 bearing against the b3 and having upwardly-projecting pins or dowels if which pass through corresponding o enines 21117 in said flanges and the bottom piate ot the cap, 'as shown in Figs. 1() and'12 and 33. 'is is an upward deflection or swell on the clamping plate 'it of convex form which tits intol a concave socketfi9 in the underside ol the bottom of the cap. 1 is a stud depending troin the bottom ot the socket i and assing through an opening i in the central part of the swell's. i is a curved wedge which isfdriven through a perforation or recess `ii3 in t-lie stud and bears with its concave and ,convex sides respectively against the outer part of said stud and the concave side of said swell, as shown in Figs. 10, 11 andSS,

thereby firmly drawing the cap and its clamp-4 ing plate against opposite sides of the upper flanges b ot the back section of the jamb. stud opens ulpwardly or through the base ot the stud in t ie saine manner as the recess f1 of the lower stud fl. y thus constructing the recesses the underside ot the llanges saine can be cast inthe upper and lower coup ling studs without requiring coring.

l represents coupling bars whereby the upper ends ot the trout sections of thejambs are stitlfened and connected with the upper corner fittings in substantially the same manner f in which the lower coupling bars connect the lower ends ot the janib fronts with the lower corner fittings.. Each of the upper coupling bars is arranged transversely in'rear of the upper end oi the j amb face vided at its ends with lugs j, which are scf cured in the back of the inner and outer jainb stops t, lll by bolts jf, shown in Fig. 11. The central part of the upper coupling bar is provided with a tapering lug jf which titsinto the back ot the intermediate stop b5. A bolt j* passing through an opening iii the interthe upper coupling bar securely connect these parts, as shown in Figs. 1() and 1.1. On the central part of the upper coupling barthe saine is provided with an ujnvardly-projecting lip jl having an inclined trent side or tace which engages with a corresponi'ling tace on the rear side ot a lug which is arranged on the underside ot the. adjacent upper corner cap, as shown i-n Figs. 1() and 11, thereby securely holding thetront and rear sections ot the jamb together at the upper ends tliercol".

ln assembling' and mounting the parts ot thewindow traine in the window opening ot the wall,l the bases of the lower corner littings are first placed in the lower corners oi the window opening. The traine sill is then placed on the sub-sill willi its ends fitting the front ends oi the bases and then these parts are secured together by the bolts df whose nuts arc pocketed in the bases betere plate and is prothe latter'are covered by the frame sill or the l bari o r rail 7c3, two vertical side bars Vor stiles s1ll and base may be put in connected. .y The frame hea with the caps lof theupper corner fittings secured thereto by the bolt-s c is next laced.in the upper recess and corners of the window back sections of theside jambs are now' inserted in the side recesses' of the window opening betweenA the rear parts of the bases and 'a to the end'fianges ofthe rear the lug js of the is tilted, so that its lower end stands farther away from the rear jainb section and the nut of the bolt g4 is placed inA the pocketof the lug gf to permitof fastening the l owcr end ofthe jamb face thereto when the latter has been rear section.

moved inwardly for alining the same with the Thatside of each clamping plate facing its corner against the adjacent ilanges on the back section of the j amb, as'sllown in Figs. 4,16, l() and ing weaving ofthe same. side walls oi' the rear jamb secti nirom the doubled or groovcd part b4 of the front Wall to the frontsection these parts form braces Bf for the front section which materially stil'ens and strengthens the structure. This construction of metal windi'iwframe permits any part thereof which may be damaged by tire to be conveniently re )laced by a new 'part without requiring the Whole frame to be removedA for that purpose, thus reducing the cost of making repairs.4v If desired, the studs of both corner fittings may be so constructed that their free ends are flush with the faces of' their corner pieces, as shown in Fig. 34, which Anotches B2 in 'the rear Which permits the back sections of the jambs to ass over the same in assembling or dismemliering the frame without requiring the walls thereof.

K represent the upper-and lower sash of the window. These sash are constructed substantially alike but are arranged reversely to' each other in the frame. The .lower sash has a short horizontal lower bar or rail Zcftwoyvertical side bars or Stiles Zr which engage on the inner ysides of thclr lower ends with the outer ends of the lower rail, and a long horizontal upper bar or check rail k2 engages on the under side of its opposite ends with the upper ends of the stilcs. The upper sash has a short upper horizontal lace afterbeing.

opening. l' The ie vcaps of the corner 4fittings on bothv sides. Toperm'it of'. thus'introducing the back jamba-front section.

pieceis provided with a marginal rib t wlnchbears suring a firxngrip on said flanges and prevent. By extending the.

- which which engageon the inner side of their uprail, and a horizontal lower baror check rail which engages on the upper sides ofvits ends with the lower end s of. the stiles 7a4.

Each member ofthe sash'is hollow and constructed of sheet metal in any suitable and well known manner and provided on its inner 'wall with a'longitudinal groo'velc which re'- 'ceives the edgeyof the glass pane k7. y

v The ends of the opposing sash members are connected 1' y corner' fittings each ofV which is constructed as follows: L represents a side 'coupling piece and L1 an end coupling piece ycoperating with the side coupling piece, as shown iii-Figs. 3, 5 andv 23. The

sidecoupling piece has-a transverse filling f plate? Zwhi'ch closes the end sash member and a longitudinal clamping plate Z which bears against the inner longitudinal wall of said side bearing member adjacent toits end, the transverse and longitudinal plates being constructedin one piece in the form of an angle. The end coupling piece L1v is likewiseof angular shape and consists of'a transverse lclamping plate Z2 arranged at the end of ythe -Aendbearing sash Vmember and a lonvitudinal stifening late Z3 which engages with theinner side of t elongit-udinal outer or face wall of saidend bearing sash member, as Lshown in F ig. 3. The

of'a side bearing vertical walls ofthe end bearing member are provided at their ends with lipsor flanges Zes which are turned inwardly over the outer side of the .end bearingrv plate Z2, as s hown in Fig. 5,. The coupling plates Z1 and Z2 are drawn together by abolttltfor' clamping between them t'he inner wa l.l of the side bearing member and the lips ofthe end bearing member. This bolt hasl its head and nut bearing against thel rear sides of the side and end clamping plates, respectively., and passes through an opening in the end clamping plate and through longitudinal slots Z5, Z(i in the inner wall of the side-bearing member and in the side clamping plate, respectively, slotslop'en outwardly, as shown in Figs. 23 and 35. The opposing couplingplates of the corner litting are constructed to conform with the inner and outer sides ofthe inner-wall of the side-bearingmember-and the lips ofthe end ybearing member are. liliewise formed.`

One of the clamping plates is provided with pins or dowels L2 whichpass through coinciding openings in the lips of the end bearing member, the inner wall of the side bearing member and the opj'sing side clampingplate, thereby uniting these parts more securely. As shown in Figj, the dowcl pins are formed on the clamping plate ol the end bearing member.

ln assembling two members of a sash, the coupling piece L is first placed in the end of the side bearingmember. piece L1 with the bolt previously applied thereto is next inserted in the end of the` end bearing member, so that its dowels project through the openings in the lips. The end bearing piece can be thus placed in its end bearing sash member by temporarily shifting longitudinal' ledges face wall 1c thereof lengthwise the tubular bodies the outer or suiiiciently for this purpose to afford access to the interior of the end bearing member, this being possible by connecting said face .wall with its compfanion vertical or side walls by a sliding joint as shown in Figs. 21 and 32. The head of the bolt while mounted on the end bearing member is new passed through the slot of the clamping plate in the' side bearing member and the dowels of the end bea-ring member are engaged with the openings in the opposing parts. The bolt is now tightened by means of suitable tools which engage with its head. Access to the latter is aiorded through an opemng Z7 in the outer face wall of the side bearing member,

25 rear side'oi the end clamping plate is ln order to prevent the turning therewith, the

rovided with a lug or shoulder Z8 against w ich the flat side of this nut bears, as shown in Figs. 3 and 5.- The bolt is also prevented from being wholly unscrewed from its nut by burring or upsetting the end of thebolt, as shown at l in Fig. 5. This means of fastening together the several members of a sashpermits of readily assembling the parts and also disrnembering the same in the building and therefore-avoids taking the sash to the factory when repairs are necessary in case of damage by' re: A

Each of the window s ashes is preferably providedwith an intermediate vertical bar as shown in Fig. 5. nut of the bolt from or mullion which is' constructed as Jfollows:

The body of each m'ullion consists of two in' terlocking sectionsM, M1 which are connected by acontracted neck. m torminggrooves on opposite sides o''the mullionwhich receive the edges. of the opposing panes of glass.

`sheetof metal which is bentto form a tubul Each section is constructed of a larbody having two longitudinal webs knel,

m2 on its inner s ide Awhich are arranged 1n line and form the walls on one side of the 'glass grooves, a long web fm.3 and a short web- 1m* extending transversely from' the inner edges of the'- longitudinal webs/m1, m2 toward the other tubular body and forming part of the rear walls of the glassl grooves, and a single longitudinal web m5 extending out- --wardly-fronr the4 opposite edgeI or extremity ,the mul slidingv o n'ef section other, so that the single Webs mf" bear a ainst f of the long transverse web and forming part of the sidewall ori the o posite side oione ofthe lass grooves.-` T e two. sections yoi' dion are assembled bytelescoping or lengthwise .Within the the inner side of the wcb'sm2 which are iago- The `coupling j nally opposite each verse web mn of each section 'is arranged on the inner side oi the short transverse web ofthe other section, as shown in :Fig: 20. m is a sti'tl'ening core v orbar 1 which 'isarrangedwithin'the mullionand bears at its against 'the outer part of while the central 'part fits in the neck of the mullion. rl`heends of the mullion are fitted against the adjacent rails of the sash and may be secured thereto by any 'suitable means. rlhepreferred means for this purpose consist of plates -m7 secured to the inner side of the grooved walls fof the rails by bolts m and each provi ledf`with a other and the long -transstud fm.9 projecting at ri ht angles therefrom through an openlng in t e grooved .wall into the adjacent end of the hollow mullion, as shown in Fig. 21. The sitiilening bar is prei'- erably oisuch length that it fills the space in the mullion body, as shown in F ig. 3. The

-studs conform to theinterior shape oi the its channel, a concave rear wall n which recedes from the rear channel wall and con- -nects the inner ends oi the hanger side walls, an outer convex wall composed of two wings n4 which extend inwardly toward each other 105 from the outer'edges of the hangerl side walls,

and longltudinal ianges rz-5 which extend vfrom the opposing edges of the wings rear-l wardly toward'therear wall of the hanger bar, as shown in Figs. outer vertical sash stiles is provided on its outer side with a concave channel n which receives the convex outer wall .of 'the adjacent hanger bar. LMidway of' their height the sash stlles and the opposing hanger bars 115 i,

are connected by horizontal pivots whichl permit the sash to turn in a vertical plane on the hanger bars and present either side of the panes toward the interior of the builging for.

convenience in cleaning or repairmgthesash 120 and also to nventilate the room. On turning the sash its concave sides coperating with the convexy sides'of the hanger bars produces a wedge or cam action whereby the wings ofthe hanger 'bars Iare deflected in- '125 ,l

wardly sufficiently to permit the sash side bars to clear the hanger bars, as shown by dotted lines. Upon turning thefsash baci; into alinement with the hanger bars the wings ,ofl the llatter automatically resume 13e to vlr'orm two side I walls n2 which engage with the side walls oi 100 5 and 16. Each of the '110 l- A .Mw-

Y' tlieir'outer position and and the sash in the elosed'position, an out- .ner edges of the ward or convex swell a7 is formed on the inwings which swells engage with corresponding concave seats or lungi tudinal 'grooves a8 in the center of the outer sash channels'ni 4. i

' In additionto resisting the turning movement of the vsash more effectively,

the cop-- I erating vconvex swells and seats of the hanger vent the gitud-inal lnto the Jolnt between the `hanger bars and .enlargement o3 whlc with the body of the pin holds the latterand the hangerbartogether.

sash to be easily.

4outer side of said bars and sash serve to more veffectually prepassage of air-through this joint. On the outer face of each sash stile next to its weather side the same'is 'provided with a lonweatheror water groove n. Any Water which is' driven during a rain storm sash is received by these grooves and conducted downwardly to `the sill, `thereby preventing' the same from entering the building. By'conc'aving the back wall of the hangerbars thel same .bear only at their corners against the bottom of the channels in which they are guided, thereby reducing the contact surface and the wear which would otherwise result and also enabling the hangers and slid vertically inthe channels more` The preferred means for pivotally connecting thesash `and hanger bars is asvfollows: O, Figs. 3, 16, 17, 1 8 and 19', Arepresents a horizontal pinv passing transversely through a central opening in the. outer face or wall ofI one of the sash stiles or bars, the space be-4 tween the wings of the hanger bar and a lon-v gitudinal slot o1 in the rearwall thereof. At. its rear end thepivot pin is mounted on a fastening plate o2. which is secured to the-inner side'of the hanger bar'by rivetingor otherwise, as shown in Fig. 19. At its front end the pivot pin is rovided with ahead or li is beveled. on its rear side, as shown in Fig. 16, and is connected by acontracted neck o4. o5 represents a locking'plate which is applied to the inner end of the pivot pin andv This -plate is arranged in the space in rear wall of the hanger bar and secured to the wall by a rivet 06er otherwise. Formed lengthwise in the Alocking plate is a slot having a wide upper part 07 which is larger than the head of the pin, and a narrow lower part os which is of less width l than said head. The front side ofgthe locking plate is provided with an incline olead ing downwardly to the upper front edge of 2 the wide part ofsits slotV and the rear side of this lplate is provided with inclines o'vleading from the lower rear edge of said wide part of the slot downwardly along opposite sides zplate.

`silience of t f vided or flexible wings on the its pivot.

of the narrow part of theslot, as shown in Figs. 1? Aand 19. These inclines slope inwardly orrearwardly fromthe top to the bottom of said slot. On the lower rear part ofthe locking plate thev same is rabbeted to form a downwa1dlyfaci ng shoulder o11 about midway of the,n arrowflower art of the slotp at which shoulder the lower inolines o10 terininate.

In .assembling the sash and hanger bar, the convex side of the latter is first pressed against the concave side ofthe sash stile and the head of the pin is inserted in the upper partof the slotA in the locking plate. -lhe Y sash and hanger bar are now moved lengthwise relatively to each other in the direction for shifting the head of the in from the wide to the narrow part of' the slot 'in' the locking During this longitudinal' movement the -pin head rides over the lower inclines 010 and draws the front and rear walls 'of the hanger bar owing to the' elastic character of the bar. When the neck of the pinrcaches thelower end .of the slofI in thelocking plate its head clears the highest part of the lower incline 0', thereby permitting the hanger bar to expand into its normal position and causing the shoulders outobear against the' topi of the head and opposite sides of the lower narrow 9 partof the slot to engage withpthe sides of the head, whereby these parts are coupled. Whenthe narts are in th1s position the ree hanger bar causes the shoulder' of the locking plate to bear against the head of the pin with suliicient friction to hold the parts against accidental dis lacement during the ordinary operation of t iesa'me. In order to prevent positive and hanger bar and permit of dismembering the same, when necessary, the shoulder D is inclined or beveled sufficiently, as shown, so thatth'e head'of the pivot pin can be forcibly Withd rawn from underneath the same.

For the purpose of locking the saslbagainst turning on the hanger bars, means are` proreventin the wings ofthe hangers freni eing de referred Inans for this pur ose consists of ocking 4blocks P one of whie is inserted in Y1 the upper part of each hanger bar so as to fill the space between the rear wall and the p front thereof,as shown in Figs. 3 and 24. While the locking blocks are in place in the hanger bars the wings thereofare held against backward deiiection, thereby preventing the sash from tgrning on sash for cleaning the same, or for other purposes, the locking blocks are temporarily removed from the hangers which can be conveniently done, by means of. a tool which is inserted in an opening p in the' front side of the blocks. The lorking blocks are retained in the upper ends of the hanger bars by together, this being possible.V

coupling of the sash ected rearwardly. The I When it is desired to turn the renders it difficult for any person unprovide rear wall of each hanger corner piece, a clamping plate facing theocrner piece, a hollow jamb provided with an inl ternal flange arranged between said corner piece and plate, and means for connecting the corner pieces'and clamping plate, substantially as set forth.

3. A metal window-frame comprising a corner piece, a clamping'plate facing the cor-l iier piece, a hollow jam provided with an i internal il'ange arranged Abetween said corner piece vand plate, dowels arranged on the late and entering openings in said ilange an corner piece, and means for connecting the coron the bars which is the upper edge of the bar and constructing block so that it overliangs =this rear wall and rests on the shoulder p1 thereof. In order to prevent the locking blocks from becoming displaced, the saine are extended to the back of the channel of the jamb which receives the hanger bar and this rear part of the locking block is provided with a vertical opening p2 which receives the adjacent balance chain of the sash. This means of locking the sash against turning is very desirable inasmuch as it retains the sash always in the proper position to be closed in case of fire and as set forth.

' dal 3 4. A 'metal window-frame comprising a with means for removing the locking blocks corner piece provided with a stud having a from turning the window and preventing .transverse opening, a clamping plateprorapid closing of the same in case of fire.

Anysuitable means may be employed for counterbalancing the weight of the sash but l prefer for this pur ose the counterbalancing device which iss iown in Figs. 3, 17 and 19 of .the drawings and which is constructed as follows: Q, Q represent counter or sash balancing weights which move vertically in the interior ofthe frame jambs in a well known manner., Each of these weights is connected with one of the hanger bars by a chain or cord l which passes with its bight over a sash pul ey R mounted in the adjacent up er part of the frame, suitable openings being formed in the 'frame for the passage of the sash chain. simple means of attaching the chain to the hanger bar consists in forming'an eye g! on the upperl end 'of the locking plate o5, passing the end link 'of the chain downwardly through this eye and then applying a split or key ring q2 which is larger than said ye to the lower end of said link as shown iri igs. 17 and 19, whereby the latter is held against pulling upwardly through the eve. This means of fastening the chain to the hanger bar avoids the use of any separate fastening for this purpose.

I claim as my invention:

1. A metal window-frame comprisine` corner pieces each of which has a top and side' walls, a downwardly-opening bolt recess in each side wall which is enlarged at its lower end, and a pocket arranged on the inner side of each side wall in line with its recess and having a clearance opening in its back, a hollow sill having a top and side walls 'which iit at their opposite ends against the outer side of the corresponding -arts 'of the corner pieces, a bolt passing t ough la side wall of the sill' and the upperV art of a bolt recess and pocket in the side wallof a corner piece, nuts arranged in said bolt within its respective pocket, a nut retaining block arranged in the lower part of said pocket and in the wide lower art of the bolt recess, substantially asset orth. 4 v

means of'a shoulder` p formed by cutting away the locking stud, a hollow `iamb provided with an internal flan e arranged between said corner iece and c amping-lplate, and a wedge entering the opening of t e stud and operatingito draw the corner piece and plate togeter, substantially as set forth. y 5. A metal window-frame com rising a corner piece provided with a stud avine a transverse opening, a clamping plate provided with a curved part having an opening which receives said stud, terna-l flanges arranged between the corner. iece and p ate, and a curved wedge arranged in the Aopening of the lstud and bearingonits stud and the curved part of the clamping plate, substantially as set forth. y

corner piece having a concave socket, -a stud arranged on the bottom of the socket and a transverse opening in the stud, a clam ing plate having a concavo-convex swell w ich engages its convex side with said. socket and an openin stud, a ho low jarnb provided with' an internalflange which is arranged between the corner piece and 'clamping plate,

wedge arranged in the opening of said stud side against the concave side of said swell and the outer end ofthe stud, substantially as set forth. v

ing a corner piece, a clam-ping plate having a marginal ribfa'cing the corner piece, metal jamb having tween the corner p'iece and the opposing rib ofthe clamping plate,

the corner piece and clamping'plate, substantially as set forth.

8. A vmetal 'jamb having ilanges ends, a lower corner window frame .comprising a at its ieeean a lower clam lower vflange of the ]amb, andan up' Z. A metaly windowframe-comprising a nenpieeeand clamping plate secure to op# a hollow Jarnb having inopposite sides ,against theouter end of the 6. A metal 'window-frame comprising a Y 'insaid swell which receives said and a curved and bearing with its convex andconcave 7. A sheet metal window frame comprisa flange arranged beipperandv lower vided with an opening which receives said ico io I l and means connecting ing plate securedagamst opposite sides oft e isc posite sides of the u per iange of the jainb,

. substantially as set ortli.

fio

and said front '9. A metal window-frame comprising a lower corner piece having an up ardlv-pro jecting perforated stud, a lower clamping plate arranged above -the lower corner piece having an opening which receives its stud, an

upper corner piece having a downwardly-.j

projecting perforated stud', anupper clamping plate arranged below the upper corner piece and having an opening which receives its "-stud, a j amb provided at its lower end with a ilange which is clamped between the lower corner piece and plate and at its upper end with a flange which is Aclamped between the upper corner ranged in the, .perforations of said studs be- 4tween'the free 'ends of t'lie studs and said clamping plates, substantially as set fort-li.

10. A metal window frame having a amb coniposedof a back section and a front section, said back section consisting of a rear wall, two side walls and longitudinal grooves forined in the central partsof the side walls,

and said front section consisting of affront walland two side walls which latter engage at their inneredges inthe-grooves of the side walls of said rear section, substantially as set forth.

11. A metal window frame having a janib composed of a back section and a front sec. tion, said back section consisting of a rear wall, two side walls and longitudinal grooves formed in the central parts of the side walls, section consisting of a front wall andtwo side walls, said front wall bearing against the frontor outer edges of the side walls of the rear section while the rear orl inneredges of the side walls of the front section engage with tliegiooves in the side walls of the rear section, substantialhr as set forth. 12. A nietal window frame `comprising a corner piece, a: hollow janih engaging with said corner piece and composed of front and rear sections, and means for-connecting said front section and corner piece coinpr.sing a lug proj ccting from the rvcorner piece into the hollow' j amb and a bolt connecting said front section and lug,fsubst'antiallv as set forth.

' 13. A inetal window-frame comprising a iece and composed ofa rear section and a fiont section, a bar secured to the rear side of said front section, and means for connecting said bar and corner piece, substantially as set forth.

151. A metal window-frame comprising a corner piece, a pocket formed on the corner piece, a l)amb composed of a rear section and 'afront section., a. bar seci'ired.transverseh7 to i piece and plate, and wedges ar-4 corner piece, a' jamb engaging said corner.

corner piece having a lug on the upper side of 4its front part which contains a ocket, a sill fitting over the front part of l[ ie corner piece :ind having an opening which receives said lug, a jainb composed of a rear section resting on the corner piece and a front section resting on the sill, a cross bar secured to the rear of the front anib section, and a fastening bolt for the cross bar and front janib section having its nut arranged in said pocket, substantiall)v as set forth.

16. A metal window-frame comprising a corner piece having a lug, a janib composed of a rear section and a front section, and a lug onthe front section constructed to engage the lug of the corner piece, as setgforth. .Y I

17. iA inet-al'window-frame comprising a corner piece having a lug provided with an inclined rear face, a jai'nb composed of a rear section and a front section, and a cross bar secured to the rear side of the front section and having an inclined front face which engages tlie inclined face of said lugysubstantially as set forth.

1S; A metal window-frame coinprisinga lower corner piece having an upwardly-projee-ting lug, an upper corner piece having a downwardly-projecting lug, a jamb composed of a rear section and a front section, upper and lower cross bars secured to the rear sideof said front section,l a bolt connecting the lower cross har and front section with the lug of the lower corner. piece, and a lug arranged on the upper cross bar and engaging with the lug ofthe upper corner piece, substantially as set forth.

19.' A metal window-frame ,comprising a corner piece having a'grooved or corrugated surface, and a sill fitting over said surface, substantially asset forth,

20. A metal window-frame comprising a corner ieee having-a transverse groove and a plura ity of longitudinalgroovesrconnecting with the transverse groovegwand a sill embracing the corner piece `and.littingfover su bstantial 1v its longitudinal grooves, substantially-as set forth, Y i

21. A nietal window-frame comprising-a corner piece having a grooved surface, and a4 j anib resting on the corner piece fand havinlr a conduit which communicates. with sai( grooves, substantially. asset forth.

22. A inetal Window-frame coniprisinga corner piece having `a transverse groove and longitudinal grooves lconnecting with-the transverse groove, a sill fitting over said longitudinal grooves, a janib resting on the corner piece and having a hollow molding which is opposite said transverse groove and has notches in'its lower end., substantially as set forth.

'23. A nietalwindmwfranie comprising a sill having a longitudinal rib on its -top which has a longitudinal groove on its front side, and lahollow jamb having openingsl W Stiles and mils .and havin 1.5 constructed by iittinor together t fe end of one whereby the interior of the same .com-mumcates with said groove and with the exterior,

lsubstantially as set forth.

' 24. metal window sash comprising hollow stiles and rails and having its corners I L constructed by fittingto ether the end of one member 'and the side o another member, clamping plates arranged Wholly within the side. bearing member and the end bearin member, anda fastening for connecting sait plates,l substantially as set forth.

'2'5. A metal window sash comprising holits corners member and the side of another member, clam ingplates arranged Wholly within the side` earmg member and the end bearing member, and a bolt connecting said plates withini said members, substantially as set forth. i

26. A metall window'sash comprising hollow stiles and 4rails and having its corners constructed by fitting together the Aendof one member and the side of another member, clam ing plates arranged in the side bearing n l mem er and. the end b'ea'rinlr member, lips arranged on the end of the en -bearing memvlow Stiles and rails and havin member and 'the side of another `member,l

' clamging plates arranged in the sid'e bearing mem er and the end ybearin member, lips i arranged on the end ofthe en( -bearing memvber and turned inwardly between the clam ing plate thereofand the'inner face oft e bearing member, dowels or pins arranged on one of said plates and entering openingsin said lips, the inner lface of the side'bearmg member and the other clamping plate, substantiallyas -set forth. I

28. A metal window-sash comprisingwhollowV 'Stiles andr'ails and havin its corners plate in the side bearing member andl 4Elli member 'and thesi constructed by fitting to ether t e end lof one member and the side `o anothermember, a clam ing plate arranged in the end bearing mem 'er and. having abolt opening, aclam-p having a bolt recess which opens toward the outer end, and abolt arranged in the opening and. recess of said'plates, substantially as set forth..

29.v A metal' window-sash comprising hol-v low stiles 'and rails and havin constructedl by fitting together t 1e end of one lelof another member1 its corners said side bearing member having a bolt-slo't in its inner wall which o ens toward the outer end. thereof, and a toov opening in its outer' wall, a clamping plate arranged in the side.

bearing member and having a, transverse filling `plate at its outer end for'closing said -member and' abolt-slot opening outwardly arid registering with the slot of said inner' wall, a clam'} ing plate arranged in the end bearmg member and havlng a bolto'penmg and .a bolt arranged in said )oit openmgr and slots, substantially as-set forth."

A metal windmv-sash comprising hol'- i lowstiles 'and'rails andhaving its comers constructed by fitting together the end of one member and the side of another member, said side, bearing member having a bolt slot in its inner wall which opens tow ard thel outer end thereof, a clamping plate arranged in the side bearing member, a clan'iping plate arranged in the end bearing member, a bolt passing through said slot and clamping plates and having'its head arrangedin the side bearing'member and its nut arranged in the end bearing'member, a shoulder formed on theend of the boltvfor confining the nut thereon, and 'a shoulder' arranged on the clamping plate of the en'd bearinoI member and operating to prevent said nut from turn'- -ing, substantially as set forth.

31. A metal window-sash comprisin a mulhon consisting of two 1n terlocklng hol ow forming pane receiving grooves, each of said sections connected by 'a' .contracted neck i sections )eine bent out of a sheet of metal to form a tubniarbodylhaving two inwardlyextending ion itudinal webs on its inner side which are in ine and form one side of the pane grooves, short and long webs extending .transversely from the inner edges lof the longitudinal Webs toward the body ofthe other section, and a single longitudinal web extending -outwardlyfrom the long transverseweb, said sections being interlocked by engaging the long-transverse web and the extreme longitudinal web of each vsection with the inner side of the short .transverse Aweb and-the longitudinal connecting web of the other section, substantially as set forth.

32. A metal window sash comprising a lmullion consisting of two like tubular seotions which oppose eachother andare vin'terlocked,' and a bar arranged within both of said sections and operating to hold the same in lace "relatively to each other, substantial y asset forth. 33. A metal' window-sash comprising hol- 'low side bars each provided on itsl inner wall with an openingi') an intermediate bar com-v posed. of two tu ular interlocking sections, and Aa stud secured to the interior of each side bar and proj ectingthrou h said opening into the end of the interme tiallylas set forth.

low top and bottom rails or bars each. of which as an opening centrally on its inner `wall, 'a mullion composed of two tubular .interlocking-sections, plates secured 'to' the in- 34. A metal Window sashcomprising hol.

iate ,barfsubstanf lso terior ofthe rails and having studs which reject through said o enings'in'to the en sof the mullion, and a ar arranged the in'ul-l llion between s aid studs, substantially as set forth. v 35. A metal window comprising a hollow hanger` bar constructed yof sheet metal to lform two side walls, arear wall connecting the rear edges of the side walls, and a convex frontwall composed 'of two elastic wings" which extend fromfthe front edges ofv the side walls toward each other, substantially as set fOI'tli. l l

36. A metal window comprising a hollow hanger bar constructed of sheetinetal 'to form two side walls, a rear wall connecting the rear edges of the side walls, .a convex Y front wall composed'lof two wings which eX- tend from the front edges of the side wallsv toward each other, and inwardly-pro'ecting flanges arranged on theopposing edges of said wings, sustantially as set forth.

37. A metal window comprising a hollow f hanger har constructed 'of sheet metal to4 forni two side walls, a concave rear. wall connectiii'g :the rear edges of thc vside walls,`and a convex front wallconiposed of wings which extend lfrom tliefront edges of the side walls toward each other, substantially as set forth.v

38. A metal window comprising a j amb having a channel, a hollow hanger bar constructed of sheet metal to form two side walls bearingagainst the sides of said channel, a rear wall connectin the rear edges of the hanger bar side wa ls, and a convex front Wall composed of two wings projecting fromthe front edges of the hanger bar-side walls toward 'each other and having convex swells on'the inner ends of said wings, and a sash having vits stile provided with a concave outer wall which receives said wings and a concave seatin the bottom of said wall which receives the swell of said wings, subl' stantially as set forth.

39. A metal window comprising a jainb having a channel," a hollow hanger bar con-4 l 'structed of sheet metal to forni two side walls Weather side of the sash, substantially as set forth.

-bearing'against the sides of said channel, a rear wall connecting the rear edgesof the hanger bar side walls and a convex front wall compose-dof two wings projecting from the front edges of the hanger bar side walls toward each other, and a sash having its stile provided with a concave outer wall which receives" said wings and a longitudinal groove in the face of said wall adjacent to the 40. A nietal window comprising a sash '-stile, a-'Ihollow han er bar constructed ofv sheet metal and having a front wall bearing againstthe sash st ile and a rear wall, a lock ing plate secured to said'rear wall and having a slot which is wide at nepart. and narrowat another part., a pivot pin secured to saidstile narrow site sides of the narrow stantia'ily as set forth.

part of said slot, sub-l flla A ine'tal window comprising a sash stile, a hollow hanger bar constructed ofV sheet metal and' having a front wall bearing against the sash stile and a rear wall, a locking plate secured to said rear wall and having a slot which is wide at one part and narrow at another part and has'a shoulder adjacent to its narrow part, a pivot pin secured to said stile'A and having a head lconstructedfto pass through th'ewide partiof said slot and tov bear against the inner side of said plate on opposite sides ofthe narrow part of said slot leading from the wide to the narrow part of the slot, a pivot pin secured to the sash stile and having la head constructed to pass through the wide part of the slot', to ride `and having, 1a 'head constructed to through/the' wide part lof said slot and to ear Vagainst the inner side of said plate ongoppo- 90 at another part and inclines Ionits rear-side.

over said inclines and to engage the rear side i of the. locking plate on op osite sides of: the part'of its slot, su stanti'alljT asset forth'. Y

.43. A metal window comprising a. sash stile, a hollowA hanger vb ar constructed r of sheet metal and having a .front wallbearing against the sash stile and a rear-wall, a locking plate secured to said rear wall and ,having a slot whiclfi is wide at Yonepart and narrow at'anothei part, inclines on its rear side leading from the 'wide to the narrow part of the slot and shoulders at the inner ends of said inclines,\a pivot in secured to'the sash stile and having a iead constructed to ypass through the wide part of the slot, to ridefover said inclines and to engage'therear .side oi the locking plate on opposite ,sidesv of the. nai-row part of its slot and also' engage said shoulder, substantially as set forth.

44. A metal window comprisinga sash stile, a hollow hanger bar having` a front wall engaging' said stile Vand a rear wall, aloching plate secured to saiil rear wall and having an eye and a slot, a pivot pin secured, to said' stile and having a head constructed to pass through said slot and bear against the 'rear side of said plate, and a sash balance cord or chain connected'with said eye, substantially as set`forth.

45. A inetal win'dow com )rising a traine having a 'guidewaj ahollow liaiigcr bar having a back-wall bearing constantljr against the bottoni of said'guide way and having a flexible convex front wall,` a sash having w,

yicc

concave ed e 'which receives ithe flexible arranged in said-channel 'and having aleXi- \.3

' front Wall ot the hanger bar, and means for ble front wall', a sash pivoted on said bar, a' reventing inward deilection of s'aid exible I locking block arranged in said bar. between iJront wall, substantially as set forth. g lts front antl'rear wall andhaving an opening 53 46, A metal window comprising a hanger in its rearparthand a sasl'r-balance having its bar constructed of sheet metal and having a chain or cord passing through said 0pen1ng, 20 j* flexible front wall and a recess in the upper 'substantially as set forthT edge of its rear Wall forming a shoulder, and a Vitness my hand this 13th day of January, locking block arranged in said recess between `1904.

le the front and rear Wall of said hanger bar and l y i I resting'on said shoulder, substantially as set A 'CLIb TON TABOR' forth.' Witnesses:

'47'. Ajmetal Window com rising a frame THEQ.- L. POPP, having a guide channel, a ho low' hanger bar l EMMA M. GRAHAM, 

